JEE MAIN - Physics (2021 - 25th July Morning Shift - No. 14)
A linearly polarized electromagnetic wave in vacuum is
$$E = 3.1\cos \left[ {(1.8)z - (5.4 \times {{10}^6})t} \right]\widehat iN/C$$
is incident normally on a perfectly reflecting wall at z = a. Choose the correct option
$$E = 3.1\cos \left[ {(1.8)z - (5.4 \times {{10}^6})t} \right]\widehat iN/C$$
is incident normally on a perfectly reflecting wall at z = a. Choose the correct option
The wavelength is 5.4 m
The frequency of electromagnetic wave is 54 $$\times$$ 104 Hz.
The transmitted wave will be $$3.1\cos \left[ {(1.8)z - (5.4 \times {{10}^6})t} \right]\widehat iN/C$$
The reflected wave will be $$3.1\cos \left[ {(1.8)z + (5.4 \times {{10}^6})t} \right]\widehat iN/C$$
Explanation
Reflected wave will have direction opposite to incident wave.
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